EQUIVALENT WEIGHT OF SOME OXIDANTS AND REDUCTANTS-1

EQUIVALENT WEIGHT OF SOME OXIDANTS AND REDUCTANTS-2

Equivalent Weight Of Substances In Which Electron Transfers Are Same In Oxidation And Reduction Half Reactions

Determination OF Equivalent weight OF Base- Co3-2/HCo3-/NH3 || Metallic Oxide || Determination OF Equivalent weight OF Acid and Arrhenius Acid

STATEMENT -1 : Equivalent weight of an acid is always less than its molecular weight. and STATEMENT -2 : Equivalent weight of acid = ("Molecular weight")/("n-factor")

Determination of Equivalent Mass of Acid, Base, Ion, Salt, Element, Oxidant and Reductant || Class Illustrations with Short Tricks

Oxidation And Reduction

STATEMENT - 1 : Equivalent weight of a substance can never be greater than its molecular weight. STATEMENT - 2 : Equivalent weight of boric acid is (M)/(1) where M is the molecular weight. STATEMENT - 3 : Equivalent weight of H_(3)PO_(2) is (M)/(3) .

The equivalent weight of a species if acts as oxidant or reductant should be derived by : Eq. weight of oxidant or reductant = ("Mol. wt. of oxidant or reductant")/{("Number of electrons lost or gained by one"),("moleculae of oxidant or reductant"):} During chemical reactions, equal equivalents of one species react with same number of equivalents of other species giving same number of equivalent of products. However this is not true for reactants if they react in terms of moles. Also Molarity can be converted to normality by multiplying the molarity with valence factor or 'n' factor. One mole of As_(2)S_(3) is oxidised by HNO_(3) to H_(3)AsO_(4) and H_(2)SO_(4).HNO_(3) is converted into NO . The moles of HNO_(3) required are:

1 mole of FeSO_4 (atomic weight of Fe is 55.84 g mol^(-1) ) is oxidized to Fe_2(SO_4)_3 . Calculate the equivalent weight of ferrous ion.